docs: def _run_with_retries(cmd, max_retries=CMD_RETRY_COUNT, retry_exitcodes=(1,),
                        retry_message="", cmd_env=None):
      """Run a command and retry until success or max_retries is reached.
  
      :param: cmd: str: The apt command to run.
      :param: max_retries: int: The number of retries to attempt on a fatal
          command. Defaults to CMD_RETRY_COUNT.
      :param: retry_exitcodes: tuple: Optional additional exit codes to retry.
          Defaults to retry on exit code 1.
      :param: retry_message: str: Optional log prefix emitted during retries.
      :param: cmd_env: dict: Environment variables to add to the command run.
      """
  
      env = None
      kwargs = {}
      if cmd_env:
          env = os.environ.copy()
          env.update(cmd_env)
          kwargs['env'] = env
  
      if not retry_message:
          retry_message = "Failed executing '{}'".format(" ".join(cmd))
      retry_message += ". Will retry in {} seconds".format(CMD_RETRY_DELAY)
  
      retry_count = 0
      result = None
  
      retry_results = (None,) + retry_exitcodes
      while result in retry_results:
          try:
              # result = subprocess.check_call(cmd, env=env)
              result = subprocess.check_call(cmd, **kwargs)
          except subprocess.CalledProcessError as e:
              retry_count = retry_count + 1
              if retry_count > max_retries:
                  raise
              result = e.returncode
              log(retry_message)
              time.sleep(CMD_RETRY_DELAY)